# [Measure rib contraction and stretch](https://threadcabin.com/explore/148/measure-rib-contraction-and-stretch)

> Measure rib relaxed and under a defined gentle stretch. Use the state relevant to the finished opening, and check recovery after release.

- Canonical page: https://threadcabin.com/explore/148/measure-rib-contraction-and-stretch
- Language: en
- Published: 2026-09-25T17:26:33.4702487+00:00
- Updated: 2026-09-25T17:26:40.4878511+00:00
- Craft: Knitting
- Primary image: [Illustration: A relaxed ribbed sock cuff beside the same style cuff gently spread wider, showing vertical knit ribs opening without distortion.](https://threadcabin.com/images/explore/focused/rib-stretch.jpg)

Measure rib relaxed and under a defined gentle stretch. Use the state relevant to the finished opening, and check recovery after release.

## Before you start

Gather the measurements, counts or timing sample needed below. Record their units and whether they describe a sample, the whole project or one purchased package. Use a finished sample when dimensions or material use depend on fabric structure.

## Try this example

A 12 cm relaxed cuff that opens to 18 cm has a useful stretch range, but must return after release. Do not use 18 cm as its resting width in a schematic.

## Check your result

- Recheck the inputs against the actual sample or label, keep units consistent and round only the final count or purchase. Repeat a sample if a small measuring difference changes the decision.
- These arithmetic examples assume the measured structure stays comparable. Shaping, borders, dense textures and color changes require their own allowances or samples.

## Sources

- [www.purlsoho.com: all about gauge](https://www.purlsoho.com/create/all-about-gauge/)
- [www.craftyarncouncil.com: yarn weight system](https://www.craftyarncouncil.com/standards/yarn-weight-system)

[Browse editable craft templates](/crafts?craft=knitting)

[Report a correction](/corrections).

## Sources and provenance

- [Gauge is a fabric measurement, not a needle promise](https://threadcabin.com/explore/2/gauge-is-a-fabric-measurement-not-a-needle-promise)
- [Choose a bind-off for the edge](https://threadcabin.com/explore/139/choose-a-bind-off-for-the-edge)
- [Assess sock-cuff stretch](https://threadcabin.com/explore/172/assess-sock-cuff-stretch)